/*
 *  Copyright (c) 2017 Tran Le Duy
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.duy.pascal.interperter.libraries.android.view.dialog;

import android.app.Activity;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Typeface;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.net.Uri;
import android.text.InputType;
import android.text.method.DigitsKeyListener;
import android.util.DisplayMetrics;
import android.view.Gravity;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewGroup.LayoutParams;
import android.view.ViewGroup.MarginLayoutParams;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.ListAdapter;
import android.widget.RelativeLayout;
import android.widget.Spinner;
import android.widget.SpinnerAdapter;
import android.widget.TableLayout;
import android.widget.TextView;

import com.duy.pascal.ui.utils.DLog;

import org.json.JSONArray;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;
import org.xmlpull.v1.XmlPullParserFactory;

import java.io.IOException;
import java.io.InputStream;
import java.io.Reader;
import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;

public class ViewInflater {
    public static final String ANDROID = "http://schemas.android.com/apk/res/android";
    public static final int BASESEQ = 0x7f0f0000;
    public static final Map<String, String> mColorNames = new HashMap<>();
    public static final Map<String, Integer> mRelative = new HashMap<>();
    private static final Map<String, Integer> mInputTypes = new HashMap<>();
    private static XmlPullParserFactory mFactory;

    static {
        mColorNames.put("aliceblue", "#f0f8ff");
        mColorNames.put("antiquewhite", "#faebd7");
        mColorNames.put("aqua", "#00ffff");
        mColorNames.put("aquamarine", "#7fffd4");
        mColorNames.put("azure", "#f0ffff");
        mColorNames.put("beige", "#f5f5dc");
        mColorNames.put("bisque", "#ffe4c4");
        mColorNames.put("black", "#000000");
        mColorNames.put("blanchedalmond", "#ffebcd");
        mColorNames.put("blue", "#0000ff");
        mColorNames.put("blueviolet", "#8a2be2");
        mColorNames.put("brown", "#a52a2a");
        mColorNames.put("burlywood", "#deb887");
        mColorNames.put("cadetblue", "#5f9ea0");
        mColorNames.put("chartreuse", "#7fff00");
        mColorNames.put("chocolate", "#d2691e");
        mColorNames.put("coral", "#ff7f50");
        mColorNames.put("cornflowerblue", "#6495ed");
        mColorNames.put("cornsilk", "#fff8dc");
        mColorNames.put("crimson", "#dc143c");
        mColorNames.put("cyan", "#00ffff");
        mColorNames.put("darkblue", "#00008b");
        mColorNames.put("darkcyan", "#008b8b");
        mColorNames.put("darkgoldenrod", "#b8860b");
        mColorNames.put("darkgray", "#a9a9a9");
        mColorNames.put("darkgrey", "#a9a9a9");
        mColorNames.put("darkgreen", "#006400");
        mColorNames.put("darkkhaki", "#bdb76b");
        mColorNames.put("darkmagenta", "#8b008b");
        mColorNames.put("darkolivegreen", "#556b2f");
        mColorNames.put("darkorange", "#ff8c00");
        mColorNames.put("darkorchid", "#9932cc");
        mColorNames.put("darkred", "#8b0000");
        mColorNames.put("darksalmon", "#e9967a");
        mColorNames.put("darkseagreen", "#8fbc8f");
        mColorNames.put("darkslateblue", "#483d8b");
        mColorNames.put("darkslategray", "#2f4f4f");
        mColorNames.put("darkslategrey", "#2f4f4f");
        mColorNames.put("darkturquoise", "#00ced1");
        mColorNames.put("darkviolet", "#9400d3");
        mColorNames.put("deeppink", "#ff1493");
        mColorNames.put("deepskyblue", "#00bfff");
        mColorNames.put("dimgray", "#696969");
        mColorNames.put("dimgrey", "#696969");
        mColorNames.put("dodgerblue", "#1e90ff");
        mColorNames.put("firebrick", "#b22222");
        mColorNames.put("floralwhite", "#fffaf0");
        mColorNames.put("forestgreen", "#228b22");
        mColorNames.put("fuchsia", "#ff00ff");
        mColorNames.put("gainsboro", "#dcdcdc");
        mColorNames.put("ghostwhite", "#f8f8ff");
        mColorNames.put("gold", "#ffd700");
        mColorNames.put("goldenrod", "#daa520");
        mColorNames.put("gray", "#808080");
        mColorNames.put("grey", "#808080");
        mColorNames.put("green", "#008000");
        mColorNames.put("greenyellow", "#adff2f");
        mColorNames.put("honeydew", "#f0fff0");
        mColorNames.put("hotpink", "#ff69b4");
        mColorNames.put("indianred ", "#cd5c5c");
        mColorNames.put("indigo ", "#4b0082");
        mColorNames.put("ivory", "#fffff0");
        mColorNames.put("khaki", "#f0e68c");
        mColorNames.put("lavender", "#e6e6fa");
        mColorNames.put("lavenderblush", "#fff0f5");
        mColorNames.put("lawngreen", "#7cfc00");
        mColorNames.put("lemonchiffon", "#fffacd");
        mColorNames.put("lightblue", "#add8e6");
        mColorNames.put("lightcoral", "#f08080");
        mColorNames.put("lightcyan", "#e0ffff");
        mColorNames.put("lightgoldenrodyellow", "#fafad2");
        mColorNames.put("lightgray", "#d3d3d3");
        mColorNames.put("lightgrey", "#d3d3d3");
        mColorNames.put("lightgreen", "#90ee90");
        mColorNames.put("lightpink", "#ffb6c1");
        mColorNames.put("lightsalmon", "#ffa07a");
        mColorNames.put("lightseagreen", "#20b2aa");
        mColorNames.put("lightskyblue", "#87cefa");
        mColorNames.put("lightslategray", "#778899");
        mColorNames.put("lightslategrey", "#778899");
        mColorNames.put("lightsteelblue", "#b0c4de");
        mColorNames.put("lightyellow", "#ffffe0");
        mColorNames.put("lime", "#00ff00");
        mColorNames.put("limegreen", "#32cd32");
        mColorNames.put("linen", "#faf0e6");
        mColorNames.put("magenta", "#ff00ff");
        mColorNames.put("maroon", "#800000");
        mColorNames.put("mediumaquamarine", "#66cdaa");
        mColorNames.put("mediumblue", "#0000cd");
        mColorNames.put("mediumorchid", "#ba55d3");
        mColorNames.put("mediumpurple", "#9370d8");
        mColorNames.put("mediumseagreen", "#3cb371");
        mColorNames.put("mediumslateblue", "#7b68ee");
        mColorNames.put("mediumspringgreen", "#00fa9a");
        mColorNames.put("mediumturquoise", "#48d1cc");
        mColorNames.put("mediumvioletred", "#c71585");
        mColorNames.put("midnightblue", "#191970");
        mColorNames.put("mintcream", "#f5fffa");
        mColorNames.put("mistyrose", "#ffe4e1");
        mColorNames.put("moccasin", "#ffe4b5");
        mColorNames.put("navajowhite", "#ffdead");
        mColorNames.put("navy", "#000080");
        mColorNames.put("oldlace", "#fdf5e6");
        mColorNames.put("olive", "#808000");
        mColorNames.put("olivedrab", "#6b8e23");
        mColorNames.put("orange", "#ffa500");
        mColorNames.put("orangered", "#ff4500");
        mColorNames.put("orchid", "#da70d6");
        mColorNames.put("palegoldenrod", "#eee8aa");
        mColorNames.put("palegreen", "#98fb98");
        mColorNames.put("paleturquoise", "#afeeee");
        mColorNames.put("palevioletred", "#d87093");
        mColorNames.put("papayawhip", "#ffefd5");
        mColorNames.put("peachpuff", "#ffdab9");
        mColorNames.put("peru", "#cd853f");
        mColorNames.put("pink", "#ffc0cb");
        mColorNames.put("plum", "#dda0dd");
        mColorNames.put("powderblue", "#b0e0e6");
        mColorNames.put("purple", "#800080");
        mColorNames.put("red", "#ff0000");
        mColorNames.put("rosybrown", "#bc8f8f");
        mColorNames.put("royalblue", "#4169e1");
        mColorNames.put("saddlebrown", "#8b4513");
        mColorNames.put("salmon", "#fa8072");
        mColorNames.put("sandybrown", "#f4a460");
        mColorNames.put("seagreen", "#2e8b57");
        mColorNames.put("seashell", "#fff5ee");
        mColorNames.put("sienna", "#a0522d");
        mColorNames.put("silver", "#c0c0c0");
        mColorNames.put("skyblue", "#87ceeb");
        mColorNames.put("slateblue", "#6a5acd");
        mColorNames.put("slategray", "#708090");
        mColorNames.put("slategrey", "#708090");
        mColorNames.put("snow", "#fffafa");
        mColorNames.put("springgreen", "#00ff7f");
        mColorNames.put("steelblue", "#4682b4");
        mColorNames.put("tan", "#d2b48c");
        mColorNames.put("teal", "#008080");
        mColorNames.put("thistle", "#d8bfd8");
        mColorNames.put("tomato", "#ff6347");
        mColorNames.put("turquoise", "#40e0d0");
        mColorNames.put("violet", "#ee82ee");
        mColorNames.put("wheat", "#f5deb3");
        mColorNames.put("white", "#ffffff");
        mColorNames.put("whitesmoke", "#f5f5f5");
        mColorNames.put("yellow", "#ffff00");
        mColorNames.put("yellowgreen", "#9acd32");

        mRelative.put("above", RelativeLayout.ABOVE);
        mRelative.put("alignBaseline", RelativeLayout.ALIGN_BASELINE);
        mRelative.put("alignBottom", RelativeLayout.ALIGN_BOTTOM);
        mRelative.put("alignLeft", RelativeLayout.ALIGN_LEFT);
        mRelative.put("alignParentBottom", RelativeLayout.ALIGN_PARENT_BOTTOM);
        mRelative.put("alignParentLeft", RelativeLayout.ALIGN_PARENT_LEFT);
        mRelative.put("alignParentRight", RelativeLayout.ALIGN_PARENT_RIGHT);
        mRelative.put("alignParentTop", RelativeLayout.ALIGN_PARENT_TOP);
        mRelative.put("alignRight", RelativeLayout.ALIGN_PARENT_RIGHT);
        mRelative.put("alignTop", RelativeLayout.ALIGN_TOP);
        // mRelative.put("alignWithParentIfMissing",RelativeLayout.); // No idea what this translates
        // to.
        mRelative.put("below", RelativeLayout.BELOW);
        mRelative.put("centerHorizontal", RelativeLayout.CENTER_HORIZONTAL);
        mRelative.put("centerInParent", RelativeLayout.CENTER_IN_PARENT);
        mRelative.put("centerVertical", RelativeLayout.CENTER_VERTICAL);
        mRelative.put("toLeftOf", RelativeLayout.LEFT_OF);
        mRelative.put("toRightOf", RelativeLayout.RIGHT_OF);
    }

    private final Map<String, Integer> mIdList = new HashMap<>();
    private final List<String> mErrors = new ArrayList<>();
    private int mNextSeq = BASESEQ;
    private Context mContext;
    private DisplayMetrics mMetrics;

    public static XmlPullParserFactory getFactory() throws XmlPullParserException {
        if (mFactory == null) {
            mFactory = XmlPullParserFactory.newInstance();
            mFactory.setNamespaceAware(true);
        }
        return mFactory;
    }

    public static XmlPullParser getXml() throws XmlPullParserException {
        return getFactory().newPullParser();
    }

    public static XmlPullParser getXml(InputStream is) throws XmlPullParserException {
        XmlPullParser xml = getXml();
        xml.setInput(is, null);
        return xml;
    }

    public static XmlPullParser getXml(Reader ir) throws XmlPullParserException {
        XmlPullParser xml = getXml();
        xml.setInput(ir);
        return xml;
    }

    public static Map<String, Integer> getInputTypes() {
        if (mInputTypes.size() == 0) {
            mInputTypes.put("none", 0x00000000);
            mInputTypes.put("text", 0x00000001);
            mInputTypes.put("textCapCharacters", 0x00001001);
            mInputTypes.put("textCapWords", 0x00002001);
            mInputTypes.put("textCapSentences", 0x00004001);
            mInputTypes.put("textAutoCorrect", 0x00008001);
            mInputTypes.put("textAutoComplete", 0x00010001);
            mInputTypes.put("textMultiLine", 0x00020001);
            mInputTypes.put("textImeMultiLine", 0x00040001);
            mInputTypes.put("textNoSuggestions", 0x00080001);
            mInputTypes.put("textUri", 0x00000011);
            mInputTypes.put("textEmailAddress", 0x00000021);
            mInputTypes.put("textEmailSubject", 0x00000031);
            mInputTypes.put("textShortMessage", 0x00000041);
            mInputTypes.put("textLongMessage", 0x00000051);
            mInputTypes.put("textPersonName", 0x00000061);
            mInputTypes.put("textPostalAddress", 0x00000071);
            mInputTypes.put("textPassword", 0x00000081);
            mInputTypes.put("textVisiblePassword", 0x00000091);
            mInputTypes.put("textWebEditText", 0x000000a1);
            mInputTypes.put("textFilter", 0x000000b1);
            mInputTypes.put("textPhonetic", 0x000000c1);
            mInputTypes.put("textWebEmailAddress", 0x000000d1);
            mInputTypes.put("textWebPassword", 0x000000e1);
            mInputTypes.put("number", 0x00000002);
            mInputTypes.put("numberSigned", 0x00001002);
            mInputTypes.put("numberDecimal", 0x00002002);
            mInputTypes.put("numberPassword", 0x00000012);
            mInputTypes.put("phone", 0x00000003);
            mInputTypes.put("datetime", 0x00000004);
            mInputTypes.put("date", 0x00000014);
            mInputTypes.put("time", 0x00000024);
        }
        return mInputTypes;
    }

    public View inflate(Activity context, XmlPullParser xml) throws XmlPullParserException,
            IOException, IllegalArgumentException, IllegalAccessException, InvocationTargetException {
        int event;
        mContext = context;
        mErrors.clear();
        mMetrics = new DisplayMetrics();
        context.getWindowManager().getDefaultDisplay().getMetrics(mMetrics);
        do {
            event = xml.next();
            if (event == XmlPullParser.END_DOCUMENT) {
                return null;
            }
        } while (event != XmlPullParser.START_TAG);
        return inflateView(context, xml, null);
    }

    private void addln(Object msg) {
        DLog.d(msg.toString());
    }

    @SuppressWarnings("rawtypes")
    public void setClickListener(View v, View.OnClickListener listener,
                                 OnItemClickListener itemListener) {
        if (v.isClickable()) {

            if (v instanceof AdapterView) {
                try {
                    ((AdapterView) v).setOnItemClickListener(itemListener);
                } catch (RuntimeException e) {
                    // Ignore this, not all controls support OnItemClickListener
                }
            }
            try {
                v.setOnClickListener(listener);
            } catch (RuntimeException e) {
                // And not all controls support OnClickListener.
            }
        }
        if (v instanceof ViewGroup) {
            ViewGroup vg = (ViewGroup) v;
            for (int i = 0; i < vg.getChildCount(); i++) {
                setClickListener(vg.getChildAt(i), listener, itemListener);
            }
        }
    }

    private View inflateView(Context context, XmlPullParser xml, ViewGroup root)
            throws IllegalArgumentException, IllegalAccessException, InvocationTargetException,
            XmlPullParserException, IOException {
        View view = buildView(context, xml, root);
        if (view == null) {
            return view;
        }
        int event;
        while ((event = xml.next()) != XmlPullParser.END_DOCUMENT) {
            switch (event) {
                case XmlPullParser.START_TAG:
                    if (view == null || view instanceof ViewGroup) {
                        inflateView(context, xml, (ViewGroup) view);
                    } else {
                        skipTag(xml); // Not really a view, probably, skip it.
                    }
                    break;
                case XmlPullParser.END_TAG:
                    return view;
            }
        }
        return view;
    }

    private void skipTag(XmlPullParser xml) throws XmlPullParserException, IOException {
        int depth = xml.getDepth();
        int event;
        while ((event = xml.next()) != XmlPullParser.END_DOCUMENT) {
            if (event == XmlPullParser.END_TAG && xml.getDepth() <= depth) {
                break;
            }
        }
    }

    private View buildView(Context context, XmlPullParser xml, ViewGroup root)
            throws IllegalArgumentException, IllegalAccessException, InvocationTargetException {
        View view = viewClass(context, xml.getName());
        if (view != null) {
            getLayoutParams(view, root); // Make quite sure every view has a layout param.
            for (int i = 0; i < xml.getAttributeCount(); i++) {
                String ns = xml.getAttributeNamespace(i);
                String attr = xml.getAttributeName(i);
                if (ANDROID.equals(ns)) {
                    setProperty(view, root, attr, xml.getAttributeValue(i));
                }
            }
            if (root != null) {
                root.addView(view);
            }
        }

        return view;
    }

    private int getLayoutValue(String value) {
        if (value == null) {
            return 0;
        }
        if (value.equals("match_parent")) {
            return LayoutParams.FILL_PARENT;
        }
        if (value.equals("wrap_content")) {
            return LayoutParams.WRAP_CONTENT;
        }
        if (value.equals("fill_parent")) {
            return LayoutParams.FILL_PARENT;
        }
        return (int) getFontSize(value);
    }

    private float getFontSize(String value) {
        int i;
        float size;
        String unit = "px";
        for (i = 0; i < value.length(); i++) {
            char c = value.charAt(i);
            if (!(Character.isDigit(c) || c == '.')) {
                break;
            }
        }
        size = Float.parseFloat(value.substring(0, i));
        if (i < value.length()) {
            unit = value.substring(i).trim();
        }
        if (unit.equals("px")) {
            return size;
        }
        if (unit.equals("sp")) {
            return mMetrics.scaledDensity * size;
        }
        if (unit.equals("dp") || unit.equals("dip")) {
            return mMetrics.density * size;
        }
        float inches = mMetrics.ydpi * size;
        if (unit.equals("in")) {
            return inches;
        }
        if (unit.equals("pt")) {
            return inches / 72;
        }
        if (unit.equals("mm")) {
            return (float) (inches / 2.54);
        }
        return 0;
    }

    private int calcId(String value) {
        if (value == null) {
            return 0;
        }
        if (value.startsWith("@+id/")) {
            return tryGetId(value.substring(5));
        }
        if (value.startsWith("@id/")) {
            return tryGetId(value.substring(4));
        }
        try {
            return Integer.parseInt(value);
        } catch (NumberFormatException e) {
            return 0;
        }
    }

    private int tryGetId(String value) {
        Integer id = mIdList.get(value);
        if (id == null) {
            id = mNextSeq++;
            mIdList.put(value, id);
        }
        return id;
    }

    private LayoutParams getLayoutParams(View view, ViewGroup root) {
        LayoutParams result = view.getLayoutParams();
        if (result == null) {
            result = createLayoutParams(root);
            view.setLayoutParams(result);
        }
        return result;
    }

    private LayoutParams createLayoutParams(ViewGroup root) {
        LayoutParams result = null;
        if (root != null) {
            try {
                String lookfor = root.getClass().getName() + "$LayoutParams";
                addln(lookfor);
                Class<? extends LayoutParams> clazz = Class.forName(lookfor).asSubclass(LayoutParams.class);
                if (clazz != null) {
                    Constructor<? extends LayoutParams> ct = clazz.getConstructor(int.class, int.class);
                    result = ct.newInstance(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
                }
            } catch (Exception e) {
                result = null;
            }
        }
        if (result == null) {
            result = new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
        }
        return result;
    }

    public void setProperty(View view, String attr, String value) {
        try {
            setProperty(view, (ViewGroup) view.getParent(), attr, value);
        } catch (Exception e) {
            mErrors.add(e.toString());
        }
    }

    private void setProperty(View view, ViewGroup root, String attr, String value)
            throws IllegalArgumentException, IllegalAccessException, InvocationTargetException {
        addln(attr + ":" + value);
        if (attr.startsWith("layout_")) {
            setLayoutProperty(view, root, attr, value);
        } else if (attr.equals("id")) {
            view.setId(calcId(value));
        } else if (attr.equals("gravity")) {
            setInteger(view, attr, getInteger(Gravity.class, value));
        } else if (attr.equals("width") || attr.equals("height")) {
            setInteger(view, attr, (int) getFontSize(value));
        } else if (attr.equals("inputType")) {
            setInteger(view, attr, getInteger(InputType.class, value));
        } else if (attr.equals("background")) {
            setBackground(view, value);
        } else if (attr.equals("digits") && view instanceof TextView) {
            ((TextView) view).setKeyListener(DigitsKeyListener.getInstance(value));
        } else if (attr.startsWith("nextFocus")) {
            setInteger(view, attr + "Id", calcId(value));
        } else if (attr.equals("padding")) {
            int size = (int) getFontSize(value);
            view.setPadding(size, size, size, size);
        } else if (attr.equals("stretchColumns")) {
            setStretchColumns(view, value);
        } else if (attr.equals("textSize")) {
            setFloat(view, attr, getFontSize(value));
        } else if (attr.equals("textColor")) {
            setInteger(view, attr, getColor(value));
        } else if (attr.equals("textHighlightColor")) {
            setInteger(view, "HighlightColor", getColor(value));
        } else if (attr.equals("textColorHint")) {
            setInteger(view, "LinkTextColor", getColor(value));
        } else if (attr.equals("textStyle")) {
            TextView textview = (TextView) view;
            int style = getInteger(Typeface.class, value);
            if (style == 0) {
                textview.setTypeface(Typeface.DEFAULT);
            } else {
                textview.setTypeface(textview.getTypeface(), style);
            }
        } else if (attr.equals("typeface")) {
            TextView textview = (TextView) view;
            Typeface typeface = textview.getTypeface();
            int style = typeface == null ? 0 : typeface.getStyle();
            textview.setTypeface(Typeface.create(value, style));
        } else if (attr.equals("src")) {
            setImage(view, value);
        } else {
            setDynamicProperty(view, attr, value);
        }
    }

    private void setStretchColumns(View view, String value) {
        TableLayout table = (TableLayout) view;
        String[] values = value.split(",");
        for (String column : values) {
            table.setColumnStretchable(Integer.parseInt(column), true);
        }
    }

    private void setLayoutProperty(View view, ViewGroup root, String attr, String value) {
        LayoutParams layout = getLayoutParams(view, root);
        String layoutAttr = attr.substring(7);
        switch (layoutAttr) {
            case "width":
                layout.width = getLayoutValue(value);
                break;
            case "height":
                layout.height = getLayoutValue(value);
                break;
            case "gravity":
                setIntegerField(layout, "gravity", getInteger(Gravity.class, value));
                break;
            default:
                if (layoutAttr.startsWith("margin") && layout instanceof MarginLayoutParams) {
                    int size = (int) getFontSize(value);
                    MarginLayoutParams margins = (MarginLayoutParams) layout;
                    switch (layoutAttr) {
                        case "marginBottom":
                            margins.bottomMargin = size;
                            break;
                        case "marginTop":
                            margins.topMargin = size;
                            break;
                        case "marginLeft":
                            margins.leftMargin = size;
                            break;
                        case "marginRight":
                            margins.rightMargin = size;
                            break;
                    }
                } else if (layout instanceof RelativeLayout.LayoutParams) {
                    int anchor = calcId(value);
                    if (anchor == 0) {
                        anchor = getInteger(RelativeLayout.class, value);
                    }
                    int rule = mRelative.get(layoutAttr);
                    ((RelativeLayout.LayoutParams) layout).addRule(rule, anchor);
                } else {
                    setIntegerField(layout, layoutAttr, getInteger(layout.getClass(), value));
                }
                break;
        }
    }

    private void setBackground(View view, String value) {
        if (value.startsWith("#")) {
            view.setBackgroundColor(getColor(value));
        } else if (value.startsWith("@")) {
            setInteger(view, "backgroundResource", getInteger(view, value));
        } else {
            view.setBackgroundDrawable(getDrawable(value));
        }
    }

    private Drawable getDrawable(String value) {
        try {
            Uri uri = Uri.parse(value);
            if ("file".equals(uri.getScheme())) {
                return new BitmapDrawable(uri.getPath());
            }
        } catch (Exception e) {
            mErrors.add("failed to load drawable " + value);
        }
        return null;
    }

    private void setImage(View view, String value) {
        if (value.startsWith("@")) {
            setInteger(view, "imageResource", getInteger(view, value));
        } else {
            try {
                Uri uri = Uri.parse(value);
                if ("file".equals(uri.getScheme())) {
                    Bitmap bm = BitmapFactory.decodeFile(uri.getPath());
                    Method method = view.getClass().getMethod("setImageBitmap", Bitmap.class);
                    method.invoke(view, bm);
                } else {
                    mErrors.add("Only 'file' currently supported for images");
                }
            } catch (Exception e) {
                mErrors.add("failed to set image " + value);
            }
        }
    }

    private void setIntegerField(Object target, String fieldName, int value) {
        try {
            Field f = target.getClass().getField(fieldName);
            f.setInt(target, value);
        } catch (Exception e) {
            mErrors.add("set field)" + fieldName + " failed. " + e.toString());
        }
    }

    /**
     * Expand single digit color to 2 digits.
     */
    private int expandColor(String colorValue) {
        return Integer.parseInt(colorValue + colorValue, 16);
    }

    private int getColor(String value) {
        int a = 0xff, r = 0, g = 0, b = 0;
        if (value.startsWith("#")) {
            try {
                value = value.substring(1);
                if (value.length() == 4) {
                    a = expandColor(value.substring(0, 1));
                    value = value.substring(1);
                }
                if (value.length() == 3) {
                    r = expandColor(value.substring(0, 1));
                    g = expandColor(value.substring(1, 2));
                    b = expandColor(value.substring(2, 3));
                } else {
                    if (value.length() == 8) {
                        a = Integer.parseInt(value.substring(0, 2), 16);
                        value = value.substring(2);
                    }
                    if (value.length() == 6) {
                        r = Integer.parseInt(value.substring(0, 2), 16);
                        g = Integer.parseInt(value.substring(2, 4), 16);
                        b = Integer.parseInt(value.substring(4, 6), 16);
                    }
                }
                long result = (a << 24) | (r << 16) | (g << 8) | b;
                return (int) result;
            } catch (Exception ignored) {
            }
        } else if (mColorNames.containsKey(value.toLowerCase())) {
            return getColor(mColorNames.get(value.toLowerCase()));
        }
        mErrors.add("Unknown color " + value);
        return 0;
    }

    private int getInputType(String value) {
        int result = 0;
        Integer v = getInputTypes().get(value);
        if (v == null) {
            mErrors.add("Unkown input type " + value);
        } else {
            result = v;
        }
        return result;
    }

    private void setInteger(View view, String attr, int value) {
        String name = "set" + PCase(attr);
        Method m;
        try {
            if ((m = tryMethod(view, name, Context.class, int.class)) != null) {
                m.invoke(view, mContext, value);
            } else if ((m = tryMethod(view, name, int.class)) != null) {
                m.invoke(view, value);
            }
        } catch (Exception e) {
            addln(name + ":" + value + ":" + e.toString());
        }

    }

    private void setFloat(View view, String attr, float value) {
        String name = "set" + PCase(attr);
        Method m;
        try {
            if ((m = tryMethod(view, name, Context.class, float.class)) != null) {
                m.invoke(view, mContext, value);
            } else if ((m = tryMethod(view, name, float.class)) != null) {
                m.invoke(view, value);
            }
        } catch (Exception e) {
            addln(name + ":" + value + ":" + e.toString());
        }

    }

    private void setDynamicProperty(View view, String attr, String value)
            throws IllegalArgumentException, IllegalAccessException, InvocationTargetException {
        String name = "set" + PCase(attr);
        try {
            Method m = tryMethod(view, name, CharSequence.class);
            if (m != null) {
                m.invoke(view, value);
            } else if ((m = tryMethod(view, name, Context.class, int.class)) != null) {
                m.invoke(view, mContext, getInteger(view, value));
            } else if ((m = tryMethod(view, name, int.class)) != null) {
                m.invoke(view, getInteger(view, value));
            } else if ((m = tryMethod(view, name, float.class)) != null) {
                m.invoke(view, Float.parseFloat(value));
            } else if ((m = tryMethod(view, name, boolean.class)) != null) {
                m.invoke(view, Boolean.parseBoolean(value));
            } else if ((m = tryMethod(view, name, Object.class)) != null) {
                m.invoke(view, value);
            } else {
                mErrors.add(view.getClass().getSimpleName() + ":" + attr + " Property not found.");
            }
        } catch (Exception e) {
            addln(name + ":" + value + ":" + e.toString());
            mErrors.add(name + ":" + value + ":" + e.toString());
        }
    }

    private String PCase(String s) {
        if (s == null) {
            return null;
        }
        if (s.length() > 0) {
            return s.substring(0, 1).toUpperCase() + s.substring(1);
        }
        return "";
    }

    private Method tryMethod(Object o, String name, Class<?>... parameters) {
        Method result;
        try {
            result = o.getClass().getMethod(name, parameters);
        } catch (Exception e) {
            result = null;
        }
        return result;
    }

    public String camelCase(String s) {
        if (s == null) {
            return "";
        } else if (s.length() < 2) {
            return s.toUpperCase();
        } else {
            return s.substring(0, 1).toUpperCase() + s.substring(1).toLowerCase();
        }
    }

    private Integer getInteger(Class<?> clazz, String value) {
        Integer result = null;
        if (value.contains("|")) {
            int work = 0;
            for (String s : value.split("\\|")) {
                work |= getInteger(clazz, s);
            }
            result = work;
        } else {
            if (value.startsWith("?")) {
                result = parseTheme(value);
            } else if (value.startsWith("@")) {
                result = parseTheme(value);
            } else if (value.startsWith("0x")) {
                try {
                    result = (int) Long.parseLong(value.substring(2), 16);
                } catch (NumberFormatException e) {
                    result = 0;
                }
            } else {
                try {
                    result = Integer.parseInt(value);
                } catch (NumberFormatException e) {
                    if (clazz == InputType.class) {
                        return getInputType(value);
                    }
                    try {
                        Field f = clazz.getField(value.toUpperCase());
                        result = f.getInt(null);
                    } catch (Exception ex) {
                        mErrors.add("Unknown value: " + value);
                        result = 0;
                    }
                }
            }
        }
        return result;
    }

    private Integer getInteger(View view, String value) {
        return getInteger(view.getClass(), value);
    }

    private Integer parseTheme(String value) {
        int result;
        try {
            String query = "";
            int i;
            value = value.substring(1); // skip past "?"
            i = value.indexOf(":");
            if (i >= 0) {
                query = value.substring(0, i) + ".";
                value = value.substring(i + 1);
            }
            query += "R";
            i = value.indexOf("/");
            if (i >= 0) {
                query += "$" + value.substring(0, i);
                value = value.substring(i + 1);
            }
            Class<?> clazz = Class.forName(query);
            Field f = clazz.getField(value);
            result = f.getInt(null);
        } catch (Exception e) {
            result = 0;
        }
        return result;
    }

    private View viewClass(Context context, String name) {
        View result = null;
        result = viewClassTry(context, "android.view." + name);
        if (result == null) {
            result = viewClassTry(context, "android.widget." + name);
        }
        if (result == null) {
            result = viewClassTry(context, name);
        }
        return result;
    }

    private View viewClassTry(Context context, String name) {
        View result = null;
        try {
            Class<? extends View> viewclass = Class.forName(name).asSubclass(View.class);
            if (viewclass != null) {
                Constructor<? extends View> ct = viewclass.getConstructor(Context.class);
                result = ct.newInstance(context);
            }
        } catch (Exception ignored) {
        }
        return result;

    }

    public Map<String, Integer> getIdList() {
        return mIdList;
    }

    /**
     * Query class (typically R.id) to extract id names
     */
    public void setIdList(Class<?> idClass) {
        mIdList.clear();
        for (Field f : idClass.getDeclaredFields()) {
            try {
                String name = f.getName();
                int value = f.getInt(null);
                mIdList.put(name, value);
            } catch (Exception e) {
                // Ignore
            }
        }
    }

    public List<String> getErrors() {
        return mErrors;
    }

    public String getIdName(int id) {
        for (String key : mIdList.keySet()) {
            if (mIdList.get(key) == id) {
                return key;
            }
        }
        return null;
    }

    public int getId(String name) {
        return mIdList.get(name);
    }

    public Map<String, Map<String, String>> getViewAsMap(View v) {
        Map<String, Map<String, String>> result = new HashMap<>();
        for (Entry<String, Integer> entry : mIdList.entrySet()) {
            View tmp = v.findViewById(entry.getValue());
            if (tmp != null) {
                result.put(entry.getKey(), getViewInfo(tmp));
            }
        }
        return result;
    }

    public Map<String, String> getViewInfo(View v) {
        Map<String, String> result = new HashMap<>();
        if (v.getId() != 0) {
            result.put("id", getIdName(v.getId()));
        }
        result.put("type", v.getClass().getSimpleName());
        addProperty(v, "text", result);
        addProperty(v, "visibility", result);
        addProperty(v, "checked", result);
        addProperty(v, "tag", result);
        addProperty(v, "selectedItemPosition", result);
        addProperty(v, "progress", result);
        return result;
    }

    private void addProperty(View v, String attr, Map<String, String> dest) {
        String result = getProperty(v, attr);
        if (result != null) {
            dest.put(attr, result);
        }
    }

    private String getProperty(View v, String attr) {
        String name = PCase(attr);
        Method m = tryMethod(v, "indexOf" + name);
        if (m == null) {
            m = tryMethod(v, "is" + name);
        }
        String result = null;
        if (m != null) {
            try {
                Object o = m.invoke(v);
                if (o != null) {
                    result = o.toString();
                }
            } catch (Exception e) {
                result = null;
            }
        }
        return result;
    }

    public void setListAdapter(View view, JSONArray items) {
        List<String> list = new ArrayList<>();
        try {
            for (int i = 0; i < items.length(); i++) {
                list.add(items.get(i).toString());
            }
            ArrayAdapter<String> adapter;
            if (view instanceof Spinner) {
                adapter =
                        new ArrayAdapter<>(mContext, android.R.layout.simple_spinner_item,
                                android.R.id.text1, list);
            } else {
                adapter =
                        new ArrayAdapter<>(mContext, android.R.layout.simple_list_item_1,
                                android.R.id.text1, list);
            }
            adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
            Method m = tryMethod(view, "setAdapter", SpinnerAdapter.class);
            if (m == null) {
                m = view.getClass().getMethod("setAdapter", ListAdapter.class);
            }
            m.invoke(view, adapter);
        } catch (Exception e) {
            mErrors.add("failed to load list " + e.getMessage());
        }
    }

    public void clearAll() {
        getErrors().clear();
        mIdList.clear();
        mNextSeq = BASESEQ;
    }
}
